dynamic monitor log file:
bash-3.00$ tail -f console.log
estimate disk space usage:
bash-3.00$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/cciss/c0d0p3 127G 61G 60G 51% /
/dev/cciss/c0d0p1 76M 13M 60M 18% /boot
/export/home/patrol 127G 61G 60G 51% /home/patrol
/export/home/pvprapp1 127G 61G 60G 51% /home/pvprapp1
hksafs2:/export/home/ai91716
40G 14G 26G 34% /home/ai91716
hksafs2:/export/home/hf52065
40G 14G 26G 34% /home/hf52065
show current date
bash-3.00$ date
Tue Mar 10 10:42:21 HKT 2009
bash-3.00$ date '+%Y%m%d'
20090310
bash-3.00$ date '+%H%M%S'
105859
==Folder related task==========================
copy folder
bash-3.00$ cp -r sourceFolder targetFolder
rename /move folder
bash-3.00$ mv sourceFolder targetFolder
delete not empty folders
bash-3.00$ rm -rf eqtg
estimate folder size:
bash-3.00$ du -s -h /home/hf52065
7.3M /home/hf52065
create symbolic link
bash-3.00$ ln -s ./projects/realTargetFolder falseEasyNameFolder
=========================================
extract tar/tar.gz file
tar -xvf foo.tar verbosely extract foo.tar
tar -xzf foo.tar.gz extract gzipped foo.tar.gz
tar -cjf foo.tar.bz2 bar/ create bzipped tar archive of the directory bar called foo.tar.bz2
tar -xjf foo.tar.bz2 -C bar/ extract bzipped foo.tar.bz2 after changing directory to bar
tar -xzf foo.tar.gz blah.txt extract the file blah.txt from foo.tar.bz2
Tom's comments: the strange thing is, the above commands don't work, only this one work
gzip -dc *.tar.gz | tar xvf -
unzip zip file
unzip *.zip
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